We are about to switch all of our berry's to Verizon, and i have no idea what the network icons mean. Can someone please explain what they mean? I have to create like a little FAQ guide for some of our users.

I am used to seeing on at&t (3G, EDGE, GPRS, SOS, X, etc)

Now, i see 1XEV..and i have no idea what that corresponds to. Surprisingly, the google and verizon.com were absolutely worthless. I need to know what each icon means, and maybe what service you can get with that icon.